[0.17.21] Copper wire will sometimes stop being drawn

[NetherGranite]

Annotation 2019-03-26 234658.jpg (558.96 KiB) Viewed 842 times

You can see here that there is a copper wire being drawn on top of my character. However, if I walk south a tile,

Annotation 2019-03-26 234823.jpg (445.91 KiB) Viewed 842 times

it's suddenly gone. Attached is the save; my coordinates are (-61, -12).

[Twinsen]

This is something that has always been there.
A fix will require complex changes to the way we render entities, so it's still considered a minor issue.